#ifndef CASHIER
#define CASHIER

#include <algorithm>
#include <string>
#include <list>
#include "bookCollection.h"
class Cashier {

private:
  // tracks the items on the list
  list<BookData> order; 
  BookCollection bookCollection;

public:
  bool addItem(string ISBN, int qty);
  void build();
};
  

#endif
